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/*******************************************************************************
* Copyright (c) 2007, 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
* Sonatype, Inc. - ongoing development
*******************************************************************************/
package org.eclipse.equinox.internal.p2.ui.actions;
import java.util.*;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.core.runtime.jobs.IJobChangeEvent;
import org.eclipse.core.runtime.jobs.JobChangeAdapter;
import org.eclipse.equinox.internal.p2.ui.*;
import org.eclipse.equinox.internal.p2.ui.model.CategoryElement;
import org.eclipse.equinox.internal.p2.ui.model.IIUElement;
import org.eclipse.equinox.p2.engine.IProfile;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
import org.eclipse.equinox.p2.operations.ProfileChangeOperation;
import org.eclipse.equinox.p2.operations.ProvisioningJob;
import org.eclipse.equinox.p2.ui.LicenseManager;
import org.eclipse.equinox.p2.ui.ProvisioningUI;
import org.eclipse.jface.viewers.ISelectionProvider;
import org.eclipse.jface.window.Window;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.statushandlers.StatusManager;
public abstract class ProfileModificationAction extends ProvisioningAction {
public static final int ACTION_NOT_RUN = -1;
String profileId;
String userChosenProfileId;
int result = ACTION_NOT_RUN;
protected ProfileModificationAction(ProvisioningUI ui, String text, ISelectionProvider selectionProvider, String profileId) {
super(ui, text, selectionProvider);
this.ui = ui;
this.profileId = profileId;
init();
}
public void run() {
Collection<IInstallableUnit> ius = getSelectedIUs();
// No ius or no profile?
if (profileId == null || ius.size() == 0) {
ProvUI.reportStatus(getNoProfileOrSelectionStatus(profileId, ius), StatusManager.BLOCK);
runCanceled();
return;
}
run(ius, profileId);
}
public IProfile getProfile() {
String id = profileId == null ? ui.getProfileId() : profileId;
return ui.getSession().getProfileRegistry().getProfile(id);
}
protected IStatus getNoProfileOrSelectionStatus(String id, Collection<IInstallableUnit> ius) {
return new Status(IStatus.WARNING, ProvUIActivator.PLUGIN_ID, NLS.bind(ProvUIMessages.ProfileModificationAction_InvalidSelections, id, new Integer(ius.size())));
}
protected abstract ProfileChangeOperation getProfileChangeOperation(Collection<IInstallableUnit> ius);
protected void run(final Collection<IInstallableUnit> ius, final String id) {
final ProfileChangeOperation operation = getProfileChangeOperation(ius);
ProvisioningJob job = operation.getResolveJob(null);
if (job == null) {
ProvUI.reportStatus(operation.getResolutionResult(), StatusManager.SHOW);
} else {
job.addJobChangeListener(new JobChangeAdapter() {
public void done(IJobChangeEvent event) {
if (PlatformUI.isWorkbenchRunning()) {
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
public void run() {
if (validateOperation(operation))
performAction(operation, ius);
userChosenProfileId = null;
}
});
}
}
});
getProvisioningUI().schedule(job, StatusManager.SHOW | StatusManager.LOG);
}
// Since we are resolving asynchronously, our job is done. Setting this allows
// callers to decide to close the launching window.
// See https://bugs.eclipse.org/bugs/show_bug.cgi?id=236495
result = Window.OK;
}
/**
* Get the integer return code returned by any wizards launched by this
* action. If the action has not been run, return ACTION_NOT_RUN. If the
* action does not open a wizard, return Window.OK if the operation was performed,
* and Window.CANCEL if it was canceled.
*
* @return integer return code
*/
public int getReturnCode() {
return result;
}
/**
* Validate the operation and return true if the operation should
* be performed with plan. Report any errors to the user before returning false.
* @param operation
* @return a boolean indicating whether the operation should be used in a
* provisioning operation.
*/
protected boolean validateOperation(ProfileChangeOperation operation) {
if (operation != null) {
return getPolicy().continueWorkingWithOperation(operation, getShell());
}
return false;
}
protected abstract int performAction(ProfileChangeOperation operation, Collection<IInstallableUnit> ius);
protected IInstallableUnit getIU(Object element) {
return ProvUI.getAdapter(element, IInstallableUnit.class);
}
/**
* Return an array of the selected and valid installable units.
* The number of IInstallableUnits in the array may be different than
* the actual number of selections in the action's selection provider.
* That is, if the action is disabled due to invalid selections,
* this method will return those selections that were valid.
*
* @return an array of selected IInstallableUnit that meet the
* enablement criteria for the action.
*/
protected List<IInstallableUnit> getSelectedIUs() {
List<?> elements = getStructuredSelection().toList();
List<IInstallableUnit> iusList = new ArrayList<IInstallableUnit>(elements.size());
for (int i = 0; i < elements.size(); i++) {
if (elements.get(i) instanceof IIUElement) {
IIUElement element = (IIUElement) elements.get(i);
if (isSelectable(element))
iusList.add(getIU(element));
} else {
IInstallableUnit iu = ProvUI.getAdapter(elements.get(i), IInstallableUnit.class);
if (iu != null && isSelectable(iu))
iusList.add(iu);
}
}
return iusList;
}
protected boolean isSelectable(IIUElement element) {
return !(element instanceof CategoryElement);
}
protected boolean isSelectable(IInstallableUnit iu) {
return !ProvUI.isCategory(iu);
}
protected LicenseManager getLicenseManager() {
return getProvisioningUI().getLicenseManager();
}
protected QueryProvider getQueryProvider() {
return ProvUI.getQueryProvider();
}
protected final void checkEnablement(Object[] selections) {
if (isEnabledFor(selections)) {
setEnabled(!getProvisioningUI().hasScheduledOperations());
} else
setEnabled(false);
}
protected abstract boolean isEnabledFor(Object[] selections);
protected int getLock(IProfile profile, IInstallableUnit iu) {
if (profile == null)
return IProfile.LOCK_NONE;
try {
String value = profile.getInstallableUnitProperty(iu, IProfile.PROP_PROFILE_LOCKED_IU);
if (value != null)
return Integer.parseInt(value);
} catch (NumberFormatException e) {
// ignore and assume no lock
}
return IProfile.LOCK_NONE;
}
protected String getProfileProperty(IProfile profile, IInstallableUnit iu, String propertyName) {
if (profile == null || iu == null)
return null;
return profile.getInstallableUnitProperty(iu, propertyName);
}
private void runCanceled() {
// The action was canceled, do any cleanup needed before
// it is run again.
userChosenProfileId = null;
result = Window.CANCEL;
}
}
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